233
Glossary
S675IP / USA-CAN eng / A31008-xxxx-xxxx-x-xxxx / glossary.fm / 14.05.2009
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P
Paging
(handset search)
A base station function to locate registered handsets. The base station estab-
lishes a connection to every registered handset. The handsets start to ring. Pag-
ing is activated by briefly pressing the button on the base station and is deacti-
vated by briefly pressing the same button again.
PIN
Personal Identification Number
Protects against unauthorized use. When the PIN is activated, a number combi-
nation has to be entered to access a protected area.
You can protect your base station configuration data with a system PIN (4-digit
number combination).
Port
Data is exchanged between two applications in a
via a port.
Port forwarding
The Internet gateway (e.g. your router) forwards data packets from the
that are directed to a certain
to the port concerned. This allows
servers in the
to offer services on the Internet without you needing a pub-
lic IP address.
Port number
Indicates a specific application of a
. Depending on the set-
ting in the
, the port number is permanently assigned or else it is newly
assigned with each access.
The combination of
number uniquely identifies the recipient
or sender of a data packet within a network.
Predialing
.
Private IP address
.
Protocol
Describes the agreements for communicating within a
. It contains
rules for opening, administering and closing a connection, about data formats,
time frames and possible error handling.
Proxy/Proxy server
Computer program that controls the exchange of data between
and
in computer networks. If the phone sends a query to the VoIP server, the
proxy acts as a server towards the phone and as a client towards the server. A
/
and
Ports
.
Public IP address
The public IP address is the address for a network component on the Internet.
It is assigned by the Internet Service Provider. Devices that act as a link from a
local network to the Internet (gateway, router) have a public and a local IP
address.
See also:
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